:root {
  color-scheme: light;
  --bg: #f3f7f3;
  --surface: #e8efe9;
  --surface-strong: #dce7de;
  --text: #142019;
  --muted: #56675d;
  --line: rgba(28, 61, 41, 0.17);
  --line-strong: rgba(28, 61, 41, 0.34);
  --accent: #15733e;
  --accent-strong: #0e5c30;
  --accent-contrast: #f6fff8;
  --accent-soft: rgba(21, 115, 62, 0.1);
  --terminal-bg: #e3ece5;
  --terminal-text: #125d35;
  --cursor-glow: rgba(21, 115, 62, 0.075);
  --terminal-glow: rgba(21, 115, 62, 0.12);
  --header-bg: rgba(243, 247, 243, 0.92);
  --shadow: 0 22px 70px rgba(27, 60, 39, 0.12);
  --sans: "SF Pro Display", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  --mono: "SFMono-Regular", "Cascadia Code", "Liberation Mono", Menlo, monospace;
}

html[data-theme="dark"] {
  color-scheme: dark;
  --bg: #0b100e;
  --surface: #111815;
  --surface-strong: #17221d;
  --text: #ecf6ef;
  --muted: #9cafa4;
  --line: rgba(190, 230, 207, 0.15);
  --line-strong: rgba(190, 230, 207, 0.3);
  --accent: #5be793;
  --accent-strong: #82f0ae;
  --accent-contrast: #07150d;
  --accent-soft: rgba(91, 231, 147, 0.12);
  --terminal-bg: #0e1713;
  --terminal-text: #76efaa;
  --cursor-glow: rgba(91, 231, 147, 0.085);
  --terminal-glow: rgba(91, 231, 147, 0.16);
  --header-bg: rgba(11, 16, 14, 0.92);
  --shadow: 0 24px 80px rgba(0, 0, 0, 0.3);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 5.5rem;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.65;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

body,
button,
input,
textarea {
  font-synthesis: none;
}

img {
  display: block;
  max-width: 100%;
  height: auto;
}

a {
  color: inherit;
}

button {
  color: inherit;
}

::selection {
  background: var(--accent);
  color: var(--accent-contrast);
}

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

.shell {
  width: min(calc(100% - 2rem), 1400px);
  margin-inline: auto;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.skip-link {
  position: fixed;
  top: 0.75rem;
  left: 0.75rem;
  z-index: 100;
  padding: 0.65rem 0.8rem;
  background: var(--accent);
  color: var(--accent-contrast);
  font-weight: 700;
  text-decoration: none;
  transform: translateY(-140%);
  transition: transform 180ms ease;
}

.skip-link:focus {
  transform: translateY(0);
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  min-height: 68px;
  border-bottom: 1px solid var(--line);
  background: var(--header-bg);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
}

.nav-shell {
  min-height: 68px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.72rem;
  min-width: 0;
  font-family: var(--mono);
  font-size: 0.84rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  text-decoration: none;
  white-space: nowrap;
}

.brand-mark {
  width: 2rem;
  height: 2rem;
  display: grid;
  place-items: center;
  border: 1px solid var(--line-strong);
  background: var(--surface);
  color: var(--accent);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: clamp(1rem, 3vw, 2.4rem);
  margin-left: auto;
  font-size: 0.88rem;
  white-space: nowrap;
}

.nav-links a,
.footer-links a,
.text-link {
  text-decoration-thickness: 1px;
  text-underline-offset: 0.25em;
}

.nav-links a {
  text-decoration: none;
  color: var(--muted);
  transition: color 180ms ease;
}

.nav-links a:hover {
  color: var(--accent);
}

.theme-toggle {
  min-width: 3.8rem;
  min-height: 2.35rem;
  padding: 0.5rem 0.75rem;
  border: 1px solid var(--line-strong);
  border-radius: 0;
  background: var(--surface);
  font-family: var(--mono);
  font-size: 0.75rem;
  cursor: pointer;
  transition:
    background-color 180ms ease,
    border-color 180ms ease,
    transform 180ms ease;
}

.theme-toggle:hover {
  border-color: var(--accent);
  background: var(--accent-soft);
}

.theme-toggle:active,
.button:active {
  transform: translateY(1px);
}

.hero {
  min-height: calc(100svh - 68px);
  display: grid;
  align-items: center;
  overflow: hidden;
  border-bottom: 1px solid var(--line);
}

.hero-grid {
  display: grid;
  grid-template-areas:
    "ascii"
    "copy";
  gap: clamp(1.25rem, 3vw, 2rem);
  align-content: center;
  padding-block: clamp(2.5rem, 5vh, 4rem) clamp(2rem, 4vh, 3rem);
}

.hero-copy {
  grid-area: copy;
  min-width: 0;
  display: grid;
  grid-template-columns: minmax(0, 1.35fr) minmax(15rem, 0.65fr);
  grid-template-areas:
    "kicker actions"
    "lede actions";
  align-items: end;
  column-gap: clamp(2rem, 5vw, 5rem);
  row-gap: 0.45rem;
}

.hero-kicker {
  grid-area: kicker;
  margin: 0;
  color: var(--accent);
  font-family: var(--mono);
  font-size: 0.74rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.hero-lede {
  grid-area: lede;
  max-width: 54rem;
  margin: 0;
  color: var(--muted);
  font-size: clamp(1.05rem, 1.6vw, 1.35rem);
  line-height: 1.7;
}

.hero-actions {
  grid-area: actions;
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
  justify-content: flex-end;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 3rem;
  padding: 0.72rem 1rem;
  border: 1px solid transparent;
  border-radius: 0;
  font-size: 0.92rem;
  font-weight: 750;
  line-height: 1;
  text-decoration: none;
  white-space: nowrap;
  transition:
    background-color 180ms ease,
    border-color 180ms ease,
    color 180ms ease,
    transform 180ms ease;
}

.button-primary {
  background: var(--accent);
  color: var(--accent-contrast);
}

.button-primary:hover {
  background: var(--accent-strong);
  transform: translateY(-2px);
}

.button-secondary {
  border-color: var(--line-strong);
  background: var(--surface);
  color: var(--text);
}

.button-secondary:hover {
  border-color: var(--accent);
  background: var(--accent-soft);
  transform: translateY(-2px);
}

.ascii-stage {
  position: relative;
  grid-area: ascii;
  display: grid;
  grid-template-rows: auto minmax(0, 1fr);
  min-height: clamp(24rem, 56dvh, 42rem);
  margin: 0;
  overflow: hidden;
  border: 1px solid var(--line-strong);
  background: var(--terminal-bg);
  box-shadow: var(--shadow);
  cursor: default;
  isolation: isolate;
  user-select: none;
}

.ascii-stage::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  opacity: 0;
  background: radial-gradient(
    circle 230px at var(--cursor-x, 50%) var(--cursor-y, 50%),
    var(--cursor-glow),
    transparent 76%
  );
  transition: opacity 420ms ease;
}

.ascii-stage.is-pointer-active::before {
  opacity: 1;
}

.ascii-stage::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: repeating-linear-gradient(
    to bottom,
    transparent 0 3px,
    rgba(120, 255, 175, 0.045) 3px 4px
  );
  z-index: 3;
  opacity: 0.42;
}

.ascii-topline {
  position: relative;
  z-index: 4;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  min-height: 2.8rem;
  padding-inline: 1rem;
  border-bottom: 1px solid var(--line);
  color: var(--muted);
  font-family: var(--mono);
  font-size: 0.68rem;
  letter-spacing: 0.08em;
  white-space: nowrap;
}

#ascii-art {
  position: relative;
  z-index: 2;
  align-self: center;
  justify-self: center;
  width: max-content;
  max-width: none;
  margin: 0;
  padding: 1rem;
  color: var(--terminal-text);
  font-family: var(--mono);
  font-variant-ligatures: none;
  font-feature-settings: "liga" 0, "calt" 0;
  font-size: 16px;
  font-weight: 700;
  line-height: 1.04;
  white-space: pre;
  text-align: left;
}

.ascii-line {
  display: block;
  white-space: pre;
}

.ascii-char {
  display: inline-block;
  transform-origin: 50% 50%;
  will-change: transform, opacity;
  text-shadow: 0 0 18px var(--terminal-glow);
}

.ascii-stage.is-flowing .ascii-char {
  animation: asciiFlow var(--flow-duration, 8.8s) cubic-bezier(0.45, 0.05, 0.55, 0.95) var(--flow-delay, 0s) infinite;
}

.ascii-stage.is-recomposing .ascii-char {
  animation: asciiRecompose 2.15s cubic-bezier(0.22, 1, 0.36, 1) var(--recompose-delay, 0s) both;
}

.ascii-char.is-space {
  animation: none;
}

.ascii-stage.is-flowing .ascii-char.is-space,
.ascii-stage.is-recomposing .ascii-char.is-space {
  animation: none;
}

.ascii-stage.is-measuring .ascii-char {
  animation: none;
  transform: none;
}

@keyframes asciiFlow {
  0%,
  100% {
    transform: translate3d(
      calc(var(--pointer-x, 0px) + var(--flow-x, 0px)),
      calc(var(--pointer-y, 0px) + var(--flow-y, 0px)),
      0
    ) scale(0.992);
    opacity: 0.84;
  }
  34% {
    transform: translate3d(
      calc(var(--pointer-x, 0px) + var(--flow-back-x, 0px)),
      calc(var(--pointer-y, 0px) - var(--flow-y, 0px)),
      0
    ) scale(1.008);
    opacity: 1;
  }
  68% {
    transform: translate3d(
      calc(var(--pointer-x, 0px) + var(--flow-end-x, 0px)),
      calc(var(--pointer-y, 0px) + var(--flow-end-y, 0px)),
      0
    ) scale(0.998);
    opacity: 0.92;
  }
}

@keyframes asciiRecompose {
  0%,
  100% {
    transform: translate3d(var(--pointer-x, 0px), var(--pointer-y, 0px), 0) rotate(0deg) scale(1);
    opacity: 1;
  }
  26% {
    transform: translate3d(
      calc(var(--pointer-x, 0px) + var(--recompose-x, 0px)),
      calc(var(--pointer-y, 0px) + var(--recompose-y, 0px)),
      0
    ) rotate(var(--recompose-rotate, 0deg)) scale(var(--recompose-scale, 0.94));
    opacity: 0.56;
  }
  54% {
    transform: translate3d(
      calc(var(--pointer-x, 0px) + var(--recompose-back-x, 0px)),
      calc(var(--pointer-y, 0px) + var(--recompose-back-y, 0px)),
      0
    ) rotate(var(--recompose-rotate-back, 0deg)) scale(1.025);
    opacity: 0.92;
  }
  78% {
    transform: translate3d(
      calc(var(--pointer-x, 0px) + var(--recompose-end-x, 0px)),
      calc(var(--pointer-y, 0px) + var(--recompose-end-y, 0px)),
      0
    ) rotate(var(--recompose-rotate-end, 0deg)) scale(0.996);
    opacity: 0.94;
  }
}
.section {
  padding-block: clamp(5rem, 10vw, 8.5rem);
  border-bottom: 1px solid var(--line);
}

.section-copy h2,
.work-header h2 {
  margin: 0;
  max-width: 18ch;
  font-size: clamp(2.25rem, 5.2vw, 4.6rem);
  font-weight: 780;
  letter-spacing: -0.04em;
  line-height: 0.98;
  text-wrap: balance;
}

.section-copy > p:not(:first-child),
.work-header p {
  max-width: 65ch;
  margin: 1.4rem 0 0;
  color: var(--muted);
  font-size: clamp(1rem, 1.3vw, 1.12rem);
}

.about-grid {
  display: grid;
  gap: clamp(2.5rem, 6vw, 6rem);
}

.profile-panel {
  display: grid;
  grid-template-columns: 7.5rem minmax(0, 1fr);
  gap: 1.5rem;
  align-items: start;
  padding-left: 1.5rem;
  border-left: 3px solid var(--accent);
}

.profile-avatar {
  width: 7.5rem;
  border: 1px solid var(--line);
  background: var(--surface);
  image-rendering: pixelated;
}

.profile-copy p {
  margin: 0;
  color: var(--muted);
}

.profile-copy .profile-name {
  margin-bottom: 0.45rem;
  color: var(--text);
  font-family: var(--mono);
  font-size: 1.15rem;
  font-weight: 750;
}

.text-link {
  display: inline-block;
  margin-top: 1rem;
  color: var(--accent);
  font-family: var(--mono);
  font-size: 0.82rem;
  overflow-wrap: anywhere;
}

.work-header {
  display: grid;
  gap: 0;
}

.project-feature {
  display: grid;
  gap: clamp(2rem, 5vw, 4rem);
  align-items: start;
  margin-top: clamp(2.5rem, 6vw, 4.5rem);
  padding-top: clamp(2rem, 5vw, 3.5rem);
  border-top: 1px solid var(--line);
}

.project-visual {
  overflow: hidden;
  border: 1px solid var(--line);
  background: var(--surface);
}

.carousel {
  background: var(--surface);
}

.carousel-viewport {
  height: clamp(30rem, 62svh, 44rem);
  overflow: hidden;
  background: var(--bg);
  touch-action: pan-y;
}

.carousel-track {
  display: flex;
  height: 100%;
  will-change: transform;
  transition: transform 620ms cubic-bezier(0.16, 1, 0.3, 1);
}

.carousel-track.is-resetting {
  transition: none;
}

.carousel-slide {
  flex: 0 0 100%;
  min-width: 0;
  min-height: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  margin: 0;
  padding: clamp(1rem, 4vw, 2rem);
}

.carousel-slide img {
  width: auto;
  max-width: 100%;
  height: auto;
  max-height: 100%;
  object-fit: contain;
  border: 1px solid var(--line);
  background: var(--surface);
}

.carousel-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  padding: 0.75rem;
  border-top: 1px solid var(--line);
}

.carousel-navigation {
  display: flex;
  gap: 0.5rem;
}

.carousel-button,
.carousel-toggle {
  min-width: 2.75rem;
  min-height: 2.75rem;
  padding: 0.45rem 0.7rem;
  border: 1px solid var(--line-strong);
  border-radius: 0;
  background: var(--bg);
  font-family: var(--mono);
  font-size: 0.82rem;
  cursor: pointer;
  transition:
    background-color 180ms ease,
    border-color 180ms ease,
    transform 180ms ease;
}

.carousel-button:hover,
.carousel-toggle:hover {
  border-color: var(--accent);
  background: var(--accent-soft);
}

.carousel-button:active,
.carousel-toggle:active {
  transform: translateY(1px);
}

.carousel-status {
  margin: 0;
  color: var(--muted);
  font-family: var(--mono);
  font-size: 0.78rem;
}

.project-details {
  min-width: 0;
}

.tech-line {
  margin: 0;
  color: var(--accent);
  font-family: var(--mono);
  font-size: 0.76rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  overflow-wrap: anywhere;
}

.feature-list {
  margin: 1.5rem 0 0;
}

.feature-list div {
  display: grid;
  grid-template-columns: 5.5rem minmax(0, 1fr);
  gap: 1rem;
  padding-block: 1rem;
  border-bottom: 1px solid var(--line);
}

.feature-list div:first-child {
  padding-top: 0;
}

.feature-list div:last-child {
  border-bottom: 0;
}

.feature-list dt {
  color: var(--text);
  font-weight: 750;
}

.feature-list dd {
  margin: 0;
  color: var(--muted);
}

.project-link {
  margin-top: 1.6rem;
}


.site-footer {
  padding-block: 2rem;
}

.footer-shell {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  color: var(--muted);
  font-family: var(--mono);
  font-size: 0.78rem;
}

.footer-shell p {
  margin: 0;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
}

.footer-links a {
  color: var(--muted);
}

.footer-links a:hover {
  color: var(--accent);
}

.footer-content {
  display: grid;
  gap: 1.6rem;
}

.live-stats {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.7rem 1.5rem;
  padding: 0.85rem 1.1rem;
  border: 1px solid var(--line);
  background: var(--terminal-bg);
  color: var(--muted);
  font-family: var(--mono);
}

.live-stats[hidden] {
  display: none;
}

.live-stats-signal {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  margin: 0;
  color: var(--accent);
  font-size: 0.68rem;
  letter-spacing: 0.16em;
}

.live-stats-dot {
  width: 0.5rem;
  height: 0.5rem;
  border-radius: 50%;
  background: currentColor;
  animation: livePulse 2.6s ease-out infinite;
}

.live-stats[data-state="stale"] .live-stats-signal {
  color: var(--muted);
}

.live-stats[data-state="stale"] .live-stats-dot {
  animation: none;
}

.live-stats-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem 1.6rem;
  margin: 0;
}

.live-stat {
  display: flex;
  align-items: baseline;
  gap: 0.5rem;
}

.live-stat dt {
  color: var(--muted);
  font-size: 0.72rem;
}

.live-stat dd {
  margin: 0;
  color: var(--text);
  font-size: 0.95rem;
  font-variant-numeric: tabular-nums;
}

.live-stat:first-child dd {
  color: var(--accent);
}

@keyframes livePulse {
  0% {
    box-shadow: 0 0 0 0 var(--accent-soft);
  }

  70% {
    box-shadow: 0 0 0 0.45rem transparent;
  }

  100% {
    box-shadow: 0 0 0 0 transparent;
  }
}

.js .reveal {
  opacity: 0;
  transform: translateY(18px);
  transition:
    opacity 600ms cubic-bezier(0.16, 1, 0.3, 1),
    transform 600ms cubic-bezier(0.16, 1, 0.3, 1);
}

.js .reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

@media (min-width: 640px) {
  .shell {
    width: min(calc(100% - 4rem), 1400px);
  }

  .live-stats-list {
    padding-left: 1.5rem;
    border-left: 1px solid var(--line);
  }
}

@media (min-width: 768px) and (max-height: 560px) {
  .hero-grid {
    grid-template-areas: "ascii copy";
    grid-template-columns: minmax(0, 1.08fr) minmax(15rem, 0.92fr);
    align-items: center;
    gap: 1.5rem;
    padding-block: 1rem;
  }

  .hero-copy {
    grid-template-columns: 1fr;
    grid-template-areas:
      "kicker"
      "lede"
      "actions";
    gap: 0.5rem;
  }

  .hero-kicker {
    font-size: 0.62rem;
  }

  .hero-lede {
    font-size: 0.94rem;
    line-height: 1.45;
  }

  .hero-actions {
    justify-content: flex-start;
    margin-top: 0.35rem;
  }

  .hero .button {
    min-height: 2.45rem;
    padding: 0.55rem 0.8rem;
  }

  .ascii-stage {
    min-height: min(14rem, calc(100svh - 4.25rem));
  }
}

@media (min-width: 900px) {
  .about-grid {
    grid-template-columns: minmax(0, 1.08fr) minmax(20rem, 0.92fr);
    align-items: start;
  }

  .project-feature {
    grid-template-columns: minmax(20rem, 0.82fr) minmax(0, 1.18fr);
  }

}

@media (max-width: 639px) {
  .nav-links {
    display: none;
  }

  .hero {
    min-height: auto;
  }

  .hero-grid {
    gap: 1.25rem;
    padding-block: 1.5rem 2rem;
  }

  .hero-copy {
    grid-template-columns: 1fr;
    grid-template-areas:
      "kicker"
      "lede"
      "actions";
    gap: 0.9rem;
  }

  .hero-actions {
    justify-content: flex-start;
    margin-top: 0.2rem;
  }


  .ascii-stage {
    min-height: clamp(15rem, 32dvh, 21rem);
  }

  .carousel-viewport {
    height: clamp(20rem, 70svh, 36rem);
  }

  .profile-panel {
    grid-template-columns: 5.5rem minmax(0, 1fr);
    padding-left: 1rem;
  }

  .profile-avatar {
    width: 5.5rem;
  }

  .feature-list div {
    grid-template-columns: 4.75rem minmax(0, 1fr);
  }

  .footer-shell {
    align-items: flex-start;
    flex-direction: column;
  }
}

@media (max-width: 420px) {
  .brand > span:last-child {
    display: none;
  }

  .profile-panel {
    grid-template-columns: 1fr;
  }

  .feature-list div {
    grid-template-columns: 1fr;
    gap: 0.25rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }

  .js .reveal {
    opacity: 1;
    transform: none;
  }

  .ascii-stage.is-flowing .ascii-char,
  .ascii-stage.is-recomposing .ascii-char {
    animation: none;
    opacity: 1;
    transform: none;
  }
}